1272839680

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:249

約数の個数: 240

約数和(自身を含む): 3624611760

約数和(自身を除く): 2351772080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 73, 80, 98, 112, 128, 139, 140, 146, 160, 196, 224, 245, 256, 278, 280, 292, 320, 365, 392, 448, 490, 511, 512, 556, 560, 584, 640, 695, 730, 784, 896, 973, 980, 1022, 1112, 1120, 1168, 1280, 1390, 1460, 1568, 1792, 1946, 1960, 2044, 2224, 2240, 2336, 2555, 2560, 2780, 2920, 3136, 3577, 3584, 3892, 3920, 4088, 4448, 4480, 4672, 4865, 5110, 5560, 5840, 6272, 6811, 7154, 7784, 7840, 8176, 8896, 8960, 9344, 9730, 10147, 10220, 11120, 11680, 12544, 13622, 14308, 15568, 15680, 16352, 17792, 17885, 17920, 18688, 19460, 20294, 20440, 22240, 23360, 25088, 27244, 28616, 31136, 31360, 32704, 34055, 35584, 35770, 37376, 38920, 40588, 40880, 44480, 46720, 50735, 54488, 57232, 62272, 62720, 65408, 68110, 71029, 71168, 71540, 77840, 81176, 81760, 88960, 93440, 101470, 108976, 114464, 124544, 125440, 130816, 136220, 142058, 143080, 155680, 162352, 163520, 177920, 186880, 202940, 217952, 228928, 249088, 261632, 272440, 284116, 286160, 311360, 324704, 327040, 355145, 355840, 405880, 435904, 457856, 497203, 498176, 544880, 568232, 572320, 622720, 649408, 654080, 710290, 811760, 871808, 915712, 994406, 1089760, 1136464, 1144640, 1245440, 1298816, 1308160, 1420580, 1623520, 1743616, 1831424, 1988812, 2179520, 2272928, 2289280, 2486015, 2490880, 2597632, 2841160, 3247040, 3487232, 3977624, 4359040, 4545856, 4578560, 4972030, 5195264, 5682320, 6494080, 7955248, 8718080, 9091712, 9157120, 9944060, 11364640, 12988160, 15910496, 17436160, 18183424, 19888120, 22729280, 25976320, 31820992, 36366848, 39776240, 45458560, 63641984, 79552480, 90917120, 127283968, 159104960, 181834240, 254567936, 318209920, 636419840, 1272839680]

約数ペア:

[(1, 1272839680), (2, 636419840), (4, 318209920), (5, 254567936), (7, 181834240), (8, 159104960), (10, 127283968), (14, 90917120), (16, 79552480), (20, 63641984), (28, 45458560), (32, 39776240), (35, 36366848), (40, 31820992), (49, 25976320), (56, 22729280), (64, 19888120), (70, 18183424), (73, 17436160), (80, 15910496), (98, 12988160), (112, 11364640), (128, 9944060), (139, 9157120), (140, 9091712), (146, 8718080), (160, 7955248), (196, 6494080), (224, 5682320), (245, 5195264), (256, 4972030), (278, 4578560), (280, 4545856), (292, 4359040), (320, 3977624), (365, 3487232), (392, 3247040), (448, 2841160), (490, 2597632), (511, 2490880), (512, 2486015), (556, 2289280), (560, 2272928), (584, 2179520), (640, 1988812), (695, 1831424), (730, 1743616), (784, 1623520), (896, 1420580), (973, 1308160), (980, 1298816), (1022, 1245440), (1112, 1144640), (1120, 1136464), (1168, 1089760), (1280, 994406), (1390, 915712), (1460, 871808), (1568, 811760), (1792, 710290), (1946, 654080), (1960, 649408), (2044, 622720), (2224, 572320), (2240, 568232), (2336, 544880), (2555, 498176), (2560, 497203), (2780, 457856), (2920, 435904), (3136, 405880), (3577, 355840), (3584, 355145), (3892, 327040), (3920, 324704), (4088, 311360), (4448, 286160), (4480, 284116), (4672, 272440), (4865, 261632), (5110, 249088), (5560, 228928), (5840, 217952), (6272, 202940), (6811, 186880), (7154, 177920), (7784, 163520), (7840, 162352), (8176, 155680), (8896, 143080), (8960, 142058), (9344, 136220), (9730, 130816), (10147, 125440), (10220, 124544), (11120, 114464), (11680, 108976), (12544, 101470), (13622, 93440), (14308, 88960), (15568, 81760), (15680, 81176), (16352, 77840), (17792, 71540), (17885, 71168), (17920, 71029), (18688, 68110), (19460, 65408), (20294, 62720), (20440, 62272), (22240, 57232), (23360, 54488), (25088, 50735), (27244, 46720), (28616, 44480), (31136, 40880), (31360, 40588), (32704, 38920), (34055, 37376), (35584, 35770)]